Guard for platen-presses or the like.



H. J. STAGH.

GUARD FOR PLATEN PRESSES OR THE LIKE.

APPLlCATIUN FILED APR. 11. 1916 1 Patented Mar. 5, 1918.

$1.]. STACH.

GUARD FOR PLATEN PRESSES OR THE LIKE.

APPLICATION FILED APR. H'I 1916- Patented Mar. 5, 1918.

2 SHEETS-SHIFT 2- nurrnn STATES PATENT onnron. i

HOWARD J. scenes, or nanrronn,cennnctr cnr, ra s-0s :ro nlwronan MACHINECOMPANY, on rme'rronn, ennui-sermon aeonrone riou or oonnnorxon'r.

GUARD FOB PLdJJ.EN-P.RESEIEt$ DRTHE LIKE.

a m Ie'lteisletmltb Llatented "tier. 5, 1918.

Application filed Aprilli', 1916. Serial No. 91,628.

'1 b all tt ll'u'flt it may concern: i.

lie it known that I, 'llowann J. Simon, a citizen or the llnited iltules, residing at l-lart'tord, lI-larlclord county, and: State olf(.lomiccticut, have invented and discovered certain new and uscztull1nprovimflerlts in Guards :lor lPlate]i--llrcsses or the like, of whichthe following is a spunification.

The present invention relates to grilards 'lor prii'iting and othermachinery and new in the combinations and arrangements cl partshereinafter described and. particularly set torth in the acconuiumyingclaims.

The purpose of an automatically operated guard for the platens ofprinting and other presses for 1)].0t60i3l11g the hands oi. thiaoperator when placing the slice s. which guard will afford. the maxinunnelticiency with :inininunn mechanism, and wherein the same. will not besubjected to any appreciable wear or require care in its use. 7

The invention has for its further purpose to provide a platen guardwhich is built.

in, or as, a part of the press, as distinct :lroln an adjunct to themachine, and which not in itself dangerous in the event that theopcratofis hands should become engaged between the guard and the platen.

The invention is shown by way of illustration in the accompanyingdrawings, wherein:

Figure 1 is a side elevational view of a press equipped with the platenguard,

Fig. 2 a rear view of the platen showing the guard thereon,

Fig. 3 a detail side elevation of the platen and guard in normal orretracted position, and j Fig. 4L a similar view showing the parts inoperative position.

Referring to the construction in detail, 1 represents the bed of theprintingpress or other machine, and 2 the platen thereof that operatesafter the ordinary mani'ier, and' which carries the guard adapted to beantomatically operated through the movement of the platen to forciblyremove the hands of the operator from a position thatwould otherwiseresult in injury thereto.

The guard consists of a bar 3 disposed transversely of the platen 2, andsaid "bar is mounted on the platen. by a pair oi" bars '51; that fit andwork within the two grooves 5. Said rooves are of en tlicient depth tothe invention is to provide allow the bars at to fit wholly therein tothe end that the guard will form, a part oft the prcss,-'as distinctfrom an adjunct thereto with its attendant objections and generaldetraction from the appearance of the machino. The upper edgeoi. theplaten 2 is also cut away or grooved, as at (i, to receive the guard bar3, after the manner shown in Fig. 3.

The guard carrying bars l: are held in position and allowed to operatein the slots by the clips 7 secured to the back of the platen andoverlying said slots, as clearly shown in Fig. 2. At their lower endssaid barslcarry projecting members or feet 8 that havcrior their purposeto engage with the pair 01f pins 9 on the shelves of the frame 10 andcause the guard bar 3 to be raised on the inward or closing movement ofthe platen; and on the outward movement thereof, said guard isflllilOlTlllIlCttllY lowered by gravity, and this movement is assistedby the pair of springs 11. whose respective ends are anchored to theplaten and connected to the bars 4-, as shown.

The guard, as a whole, is so constructed that injury will not result tothe operator in the event oi his hand being caught be tween the guardand the platen, and this provision is further insured since the guardrecedes gentlywith the aid oi the two light springs. It will thereforebe seen that the guard is not, in itself, a dangerous attach ment to thepress.

It is obvious that those skilled in the art may vary the details ofconstruction and arrangement of parts without departing from the spiritof my invention, and therefore I do not wish to be limited to suchfeatures except as may be required by the claims.

Having thus fully described my said in vention, what I claim as new anddesire to secure by Letters Patent, is:

1. The combination with a printing press or like machine having aplaten, of a platen guard therefor comprising a bar disposed along theupper rear edge thereof, a pair of bars lying within and flush with thesur 'iliilCG of the platen and carrying said guard bur, nieinberson thelower ends of said pan of bars projecting rearwardly therefrom,

fixed meinbers on the frame of the press adapted; to engage with saidpro ecting members gon the bars and automatically raise the guard, andretraction springs engaging said pair of bars operable to Witlk drawsaid guard, substantially as set forth.

2. The combination Witha printing press or like machine havinga platenprovided with a groove along the upper rear edge thereof and hai 'ing apair of vertically dis posed grooves in the back thereof, of a platenguard comprising a bar adapted to fit Within the first mentioned groove,a pair of bars lying Within the pair of grooves and carrying said guardbar, members on the lower ends of said pair of bars projectingrearwardly therefrom, a pair of pins fixedly Copies of this patent maybe obtained for five cents each,

mounted on the frame of the press adapted to engage with said projectingmembers on the bars and automatically raise the guard, and retractionsprings engagin said pair of bars operableto Withdraw sai guard bar,substantially as set forth.

In Witness whereof, I have hereunto set my hand and seal at Hartford,Connecticut this 31st day ofMarch, A. D. nineteen hundred and sixteen.

- HOVARD J. STACH. [1,. s] lVitnesses:

RAYMOND NV. BARROWS, BELLE Gr. RUSSELL.

by. adflressingthe Commissioner of Patente,

Washington, 11.0."

